AS offers the following advantages for your application system:
AS adjusts resources in the application system. Specifically, it adds or releases resources to accommodate traffic increases or decreases, avoiding resource waste.
AS ensures that the application system always has adequate capacity to meet traffic requirements. When AS works with a load balancer, an AS group automatically adds available instances to the load balancer listener, through which the incoming traffic is evenly distributed across the instances.
AS monitors ECS instance status in the application system. Upon detecting an abnormal ECS instance, AS replaces it with a healthy instance. In addition, AS evenly distributes ECS instances to AZs.